| A | B |
| hardware | encompasses all the physical parts and components of the computer |
| cpu | (central processing unit) the brain of the computer, generates the desired output and processes the commands that you send to the computer |
| motherboard | a circuit board that connects all of the input to the processor and determines how the data will flow through the computer to an output device |
| operating system | software that controls computer resources such as memory, cpu, and connected devices |
| program | a set of instructions that a computer uses to perform tasks |
| network | consists of two or more computers that are linked together so they can share resources |
| lan | (local area network) a small network that is confined to a small and limited area that is visually the size of a home or group of offices |
| wan | (wide area network) a large network that can be connected throughout the whole world; via long wires, optical cables, or satellites. |
| server | the main computer or drive that provides the services to all the other computers |
| communication channel | the path or link that connects computers or devices to transfer information |